还有这是三个防护帽。

And here are three crash helmets.

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在工地现场必须带防护帽。

Protective helmets must be worn on site.

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防护帽保持NT9110的修整头部清洁，不使用。

A protective cap keeps the NT9110's trimming head clean while not in use.

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防护帽保持NT9110的修整头部清洁，不使用。

A protective cap keeps the NT9110's trimming head clean while not in use.

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